\begin{itemize}
\item
Swoogle: Swoogle is a semantic web search engine and it has already been used in so many research projects and applications. Swoogle's Ontology Search interface allows a user to search for existing ontology documents distributed over the internet.

\item
Knowledge management: One very promising application area of semantic web technology is knowledge management. Traditional knowledge management \cite{1298447} is facing new problems triggered by the web; information overload, inefficient keyword searching, heterogeneous information integration and geographically-distributed intranet problems. These problems could be tackled by using Semantic Web Technology.

\item
Web Services: We are at a stage where we need to produce active components that use the basic semantic web infrastructure to offer users intelligent services. Web services aim to support information access and e-business. Examples include UDDI, a repository for describing vendors, products and services. It uses WSDL \cite{1064342} to describe its entries, and SOAP as a protocol to define how they can be accessed. None of these service description elements are based on semantic web technology currently thus requiring tremendous human effort to perform tasks like: searching for vendors, products and services; comparing and combining products etc. Semantic web-enabled services \cite{1331871} can provide a higher level of service by automating many of these tasks.


\end{itemize}
